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Addressing Nodes - Coggle Diagram
Addressing Nodes
•Node Identification
𝟮.𝗠𝗔𝗖 𝗔𝗱𝗱𝗿𝗲𝘀𝘀:
𝘼 𝙝𝙖𝙧𝙙𝙬𝙖𝙧𝙚-𝙗𝙖𝙨𝙚𝙙 𝙖𝙙𝙙𝙧𝙚𝙨𝙨 𝙚𝙢𝙗𝙚𝙙𝙙𝙚𝙙 𝙞𝙣 𝙩𝙝𝙚 𝙣𝙚𝙩𝙬𝙤𝙧𝙠 𝙘𝙖𝙧𝙙, 𝙪𝙨𝙚𝙙 𝙛𝙤𝙧 𝙘𝙤𝙢𝙢𝙪𝙣𝙞𝙘𝙖𝙩𝙞𝙤𝙣 𝙬𝙞𝙩𝙝𝙞𝙣 𝙖 𝙡𝙤𝙘𝙖𝙡 𝙣𝙚𝙩𝙬𝙤𝙧𝙠
(𝗶)𝗛𝗮𝗿𝗱𝘄𝗮𝗿𝗲-𝘀𝗽𝗲𝗰𝗶𝗳𝗶𝗰, 𝟰𝟴 𝗯𝗶𝘁𝘀:
𝙏𝙝𝙚 𝙈𝘼𝘾 𝙖𝙙𝙙𝙧𝙚𝙨𝙨 𝙞𝙨 𝙪𝙣𝙞𝙦𝙪𝙚 𝙩𝙤 𝙩𝙝𝙚 𝙙𝙚𝙫𝙞𝙘𝙚 𝙖𝙣𝙙 𝙘𝙤𝙣𝙨𝙞𝙨𝙩𝙨 𝙤𝙛 48 𝙗𝙞𝙩𝙨, 𝙥𝙧𝙤𝙫𝙞𝙙𝙞𝙣𝙜 𝙖 𝙨𝙥𝙚𝙘𝙞𝙛𝙞𝙘 𝙞𝙙𝙚𝙣𝙩𝙞𝙛𝙞𝙚𝙧 𝙖𝙩 𝙩𝙝𝙚 𝙙𝙖𝙩𝙖 𝙡𝙞𝙣𝙠 𝙡𝙖𝙮𝙚𝙧
(𝗶𝗶)𝗨𝗻𝗶𝗾𝘂𝗲𝗹𝘆 𝗶𝗱𝗲𝗻𝘁𝗶𝗳𝗶𝗲𝘀 𝗻𝗲𝘁𝘄𝗼𝗿𝗸 𝗱𝗲𝘃𝗶𝗰𝗲𝘀:
𝙐𝙨𝙚𝙙 𝙛𝙤𝙧 𝙡𝙤𝙘𝙖𝙡 𝙣𝙚𝙩𝙬𝙤𝙧𝙠 𝙘𝙤𝙢𝙢𝙪𝙣𝙞𝙘𝙖𝙩𝙞𝙤𝙣, 𝙩𝙝𝙚 𝙈𝘼𝘾 𝙖𝙙𝙙𝙧𝙚𝙨𝙨 𝙚𝙣𝙨𝙪𝙧𝙚𝙨 𝙚𝙖𝙘𝙝 𝙙𝙚𝙫𝙞𝙘𝙚 𝙞𝙨 𝙙𝙞𝙨𝙩𝙞𝙣𝙘𝙩
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𝟭.𝗨𝗻𝗶𝗾𝘂𝗲 𝗡𝗼𝗱𝗲 𝗜𝗗:
𝘼 𝙨𝙥𝙚𝙘𝙞𝙛𝙞𝙘 𝙞𝙙𝙚𝙣𝙩𝙞𝙛𝙞𝙚𝙧 𝙜𝙞𝙫𝙚𝙣 𝙩𝙤 𝙚𝙖𝙘𝙝 𝙣𝙤𝙙𝙚 𝙩𝙤 𝙙𝙞𝙛𝙛𝙚𝙧𝙚𝙣𝙩𝙞𝙖𝙩𝙚 𝙞𝙩 𝙬𝙞𝙩𝙝𝙞𝙣 𝙖 𝙨𝙮𝙨𝙩𝙚𝙢 𝙤𝙧 𝙣𝙚𝙩𝙬𝙤𝙧𝙠
(𝗶)𝗔𝘀𝘀𝗶𝗴𝗻𝗲𝗱 𝗮𝘁 𝘀𝘆𝘀𝘁𝗲𝗺 𝗶𝗻𝗶𝘁𝗶𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻:
𝙄𝘿𝙨 𝙖𝙧𝙚 𝙤𝙛𝙩𝙚𝙣 𝙖𝙡𝙡𝙤𝙘𝙖𝙩𝙚𝙙 𝙬𝙝𝙚𝙣 𝙩𝙝𝙚 𝙨𝙮𝙨𝙩𝙚𝙢 𝙞𝙨 𝙨𝙚𝙩 𝙪𝙥 𝙩𝙤 𝙚𝙣𝙨𝙪𝙧𝙚 𝙪𝙣𝙞𝙦𝙪𝙚𝙣𝙚𝙨𝙨
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•Addressing Modes in CPU
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2.Relative Addressing:
𝙏𝙝𝙚 𝙚𝙛𝙛𝙚𝙘𝙩𝙞𝙫𝙚 𝙖𝙙𝙙𝙧𝙚𝙨𝙨 𝙞𝙨 𝙘𝙖𝙡𝙘𝙪𝙡𝙖𝙩𝙚𝙙 𝙗𝙮 𝙖𝙙𝙙𝙞𝙣𝙜 𝙖𝙣 𝙤𝙛𝙛𝙨𝙚𝙩 𝙩𝙤 𝙩𝙝𝙚 𝙘𝙪𝙧𝙧𝙚𝙣𝙩 𝙞𝙣𝙨𝙩𝙧𝙪𝙘𝙩𝙞𝙤𝙣 𝙥𝙤𝙞𝙣𝙩𝙚𝙧
(𝗶)𝗢𝗳𝗳𝘀𝗲𝘁 𝗿𝗲𝗹𝗮𝘁𝗶𝘃𝗲 𝘁𝗼 𝗰𝘂𝗿𝗿𝗲𝗻𝘁 𝗶𝗻𝘀𝘁𝗿𝘂𝗰𝘁𝗶𝗼𝗻:
𝙏𝙝𝙚 𝙖𝙙𝙙𝙧𝙚𝙨𝙨 𝙞𝙨 𝙙𝙚𝙧𝙞𝙫𝙚𝙙 𝙗𝙮 𝙖𝙙𝙙𝙞𝙣𝙜 𝙖 𝙘𝙤𝙣𝙨𝙩𝙖𝙣𝙩 𝙩𝙤 𝙩𝙝𝙚 𝙥𝙧𝙤𝙜𝙧𝙖𝙢 𝙘𝙤𝙪𝙣𝙩𝙚𝙧, 𝙪𝙨𝙚𝙛𝙪𝙡 𝙞𝙣 𝙡𝙤𝙤𝙥𝙨 𝙖𝙣𝙙 𝙟𝙪𝙢𝙥𝙨
(𝗶𝗶)𝗨𝘀𝗲𝗱 𝗶𝗻 𝗯𝗿𝗮𝗻𝗰𝗵𝗶𝗻𝗴 𝗮𝗻𝗱 𝗹𝗼𝗼𝗽𝘀:
𝘾𝙤𝙢𝙢𝙤𝙣𝙡𝙮 𝙪𝙨𝙚𝙙 𝙞𝙣 𝙘𝙤𝙣𝙩𝙧𝙤𝙡 𝙛𝙡𝙤𝙬, 𝙬𝙝𝙚𝙧𝙚 𝙩𝙝𝙚 𝙥𝙧𝙤𝙜𝙧𝙖𝙢 𝙣𝙚𝙚𝙙𝙨 𝙩𝙤 𝙟𝙪𝙢𝙥 𝙛𝙤𝙧𝙬𝙖𝙧𝙙 𝙤𝙧 𝙗𝙖𝙘𝙠𝙬𝙖𝙧𝙙 𝙖 𝙨𝙚𝙩 𝙣𝙪𝙢𝙗𝙚𝙧 𝙤𝙛 𝙞𝙣𝙨𝙩𝙧𝙪𝙘𝙩𝙞𝙤𝙣𝙨
3.Indexed Addressing:
𝙏𝙝𝙚 𝙛𝙞𝙣𝙖𝙡 𝙖𝙙𝙙𝙧𝙚𝙨𝙨 𝙞𝙨 𝙙𝙚𝙩𝙚𝙧𝙢𝙞𝙣𝙚𝙙 𝙗𝙮 𝙖𝙙𝙙𝙞𝙣𝙜 𝙖𝙣 𝙞𝙣𝙙𝙚𝙭 (𝙨𝙩𝙤𝙧𝙚𝙙 𝙞𝙣 𝙖𝙣 𝙞𝙣𝙙𝙚𝙭 𝙧𝙚𝙜𝙞𝙨𝙩𝙚𝙧) 𝙩𝙤 𝙖 𝙗𝙖𝙨𝙚 𝙖𝙙𝙙𝙧𝙚𝙨𝙨
(𝗶)𝗜𝗻𝗱𝗲𝘅 𝗿𝗲𝗴𝗶𝘀𝘁𝗲𝗿 + 𝗯𝗮𝘀𝗲 𝗮𝗱𝗱𝗿𝗲𝘀𝘀:
𝙏𝙝𝙚 𝙗𝙖𝙨𝙚 𝙖𝙙𝙙𝙧𝙚𝙨𝙨 𝙞𝙨 𝙘𝙤𝙢𝙗𝙞𝙣𝙚𝙙 𝙬𝙞𝙩𝙝 𝙖𝙣 𝙞𝙣𝙙𝙚𝙭 𝙫𝙖𝙡𝙪𝙚, 𝙬𝙝𝙞𝙘𝙝 𝙘𝙝𝙖𝙣𝙜𝙚𝙨 𝙙𝙮𝙣𝙖𝙢𝙞𝙘𝙖𝙡𝙡𝙮, 𝙖𝙡𝙡𝙤𝙬𝙞𝙣𝙜 𝙛𝙤𝙧 𝙚𝙛𝙛𝙞𝙘𝙞𝙚𝙣𝙩 𝙝𝙖𝙣𝙙𝙡𝙞𝙣𝙜 𝙤𝙛 𝙙𝙖𝙩𝙖 𝙖𝙧𝙧𝙖𝙮𝙨
(𝗶𝗶)𝗔𝗿𝗿𝗮𝘆 𝗮𝗻𝗱 𝘁𝗮𝗯𝗹𝗲 𝗽𝗿𝗼𝗰𝗲𝘀𝘀𝗶𝗻𝗴:
𝙐𝙨𝙚𝙛𝙪𝙡 𝙬𝙝𝙚𝙣 𝙥𝙧𝙤𝙘𝙚𝙨𝙨𝙞𝙣𝙜 𝙡𝙖𝙧𝙜𝙚 𝙙𝙖𝙩𝙖 𝙨𝙩𝙧𝙪𝙘𝙩𝙪𝙧𝙚𝙨 𝙡𝙞𝙠𝙚 𝙖𝙧𝙧𝙖𝙮𝙨, 𝙬𝙝𝙚𝙧𝙚 𝙙𝙖𝙩𝙖 𝙞𝙨 𝙨𝙩𝙤𝙧𝙚𝙙 𝙞𝙣 𝙖 𝙨𝙚𝙦𝙪𝙚𝙣𝙘𝙚
•Memory Addressing
2.Indirect Addressing:
The instruction points to a memory location that contains the actual address of the data
(i)Memory pointer:
☞Uses a pointer to another memory location, adding an extra layer of memory access
(ii)Requires extra fetch cycle:
☞Since an additional memory location must be accessed, this mode takes more time
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•Network Nodes
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𝟯.𝗛𝗼𝘀𝘁 𝗠𝗮𝗰𝗵𝗶𝗻𝗲:
𝘼𝙣𝙮 𝙙𝙚𝙫𝙞𝙘𝙚 𝙘𝙤𝙣𝙣𝙚𝙘𝙩𝙚𝙙 𝙩𝙤 𝙖 𝙣𝙚𝙩𝙬𝙤𝙧𝙠 𝙩𝙝𝙖𝙩 𝙘𝙖𝙣 𝙨𝙚𝙣𝙙 𝙖𝙣𝙙 𝙧𝙚𝙘𝙚𝙞𝙫𝙚 𝙙𝙖𝙩𝙖, 𝙨𝙪𝙘𝙝 𝙖𝙨 𝙖 𝙘𝙤𝙢𝙥𝙪𝙩𝙚𝙧 𝙤𝙧 𝙨𝙚𝙧𝙫𝙚𝙧
(𝗶)𝗘𝗻𝗱 𝗱𝗲𝘃𝗶𝗰𝗲 (𝗲.𝗴., 𝗣𝗖, 𝘀𝗲𝗿𝘃𝗲𝗿):
𝙃𝙤𝙨𝙩𝙨 𝙖𝙧𝙚 𝙩𝙝𝙚 𝙤𝙧𝙞𝙜𝙞𝙣𝙖𝙩𝙤𝙧𝙨 𝙖𝙣𝙙 𝙧𝙚𝙘𝙚𝙞𝙫𝙚𝙧𝙨 𝙤𝙛 𝙣𝙚𝙩𝙬𝙤𝙧𝙠 𝙩𝙧𝙖𝙛𝙛𝙞𝙘
(𝗶𝗶)𝗜𝗻𝗶𝘁𝗶𝗮𝘁𝗲𝘀 𝗱𝗮𝘁𝗮 𝗲𝘅𝗰𝗵𝗮𝗻𝗴𝗲:
𝙏𝙝𝙚𝙮 𝙜𝙚𝙣𝙚𝙧𝙖𝙩𝙚, 𝙧𝙚𝙦𝙪𝙚𝙨𝙩, 𝙤𝙧 𝙨𝙩𝙤𝙧𝙚 𝙙𝙖𝙩𝙖, 𝙥𝙡𝙖𝙮𝙞𝙣𝙜 𝙖 𝙠𝙚𝙮 𝙧𝙤𝙡𝙚 𝙞𝙣 𝙣𝙚𝙩𝙬𝙤𝙧𝙠 𝙘𝙤𝙢𝙢𝙪𝙣𝙞𝙘𝙖𝙩𝙞𝙤𝙣
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•Address Mapping
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𝟭.𝗟𝗼𝗴𝗶𝗰𝗮𝗹 𝗔𝗱𝗱𝗿𝗲𝘀𝘀:
𝙏𝙝𝙚 𝙖𝙙𝙙𝙧𝙚𝙨𝙨 𝙜𝙚𝙣𝙚𝙧𝙖𝙩𝙚𝙙 𝙗𝙮 𝙩𝙝𝙚 𝘾𝙋𝙐, 𝙪𝙨𝙚𝙙 𝙗𝙮 𝙥𝙧𝙤𝙜𝙧𝙖𝙢𝙨 𝙙𝙪𝙧𝙞𝙣𝙜 𝙚𝙭𝙚𝙘𝙪𝙩𝙞𝙤𝙣
(𝗶)𝗖𝗣𝗨-𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗲𝗱 𝗮𝗱𝗱𝗿𝗲𝘀𝘀:
𝙏𝙝𝙚 𝘾𝙋𝙐 𝙘𝙧𝙚𝙖𝙩𝙚𝙨 𝙖 𝙡𝙤𝙜𝙞𝙘𝙖𝙡 𝙖𝙙𝙙𝙧𝙚𝙨𝙨 𝙬𝙝𝙞𝙡𝙚 𝙚𝙭𝙚𝙘𝙪𝙩𝙞𝙣𝙜 𝙞𝙣𝙨𝙩𝙧𝙪𝙘𝙩𝙞𝙤𝙣𝙨, 𝙬𝙝𝙞𝙘𝙝 𝙞𝙨 𝙡𝙖𝙩𝙚𝙧 𝙩𝙧𝙖𝙣𝙨𝙡𝙖𝙩𝙚𝙙 𝙞𝙣𝙩𝙤 𝙖 𝙥𝙝𝙮𝙨𝙞𝙘𝙖𝙡 𝙖𝙙𝙙𝙧𝙚𝙨𝙨
(𝗶𝗶)𝗣𝗿𝗼𝗴𝗿𝗮𝗺-𝘀𝗽𝗲𝗰𝗶𝗳𝗶𝗰 𝗮𝗱𝗱𝗿𝗲𝘀𝘀 𝘀𝗽𝗮𝗰𝗲:
𝙀𝙖𝙘𝙝 𝙥𝙧𝙤𝙜𝙧𝙖𝙢 𝙤𝙥𝙚𝙧𝙖𝙩𝙚𝙨 𝙬𝙞𝙩𝙝𝙞𝙣 𝙞𝙩𝙨 𝙤𝙬𝙣 𝙡𝙤𝙜𝙞𝙘𝙖𝙡 𝙖𝙙𝙙𝙧𝙚𝙨𝙨 𝙨𝙥𝙖𝙘𝙚, 𝙥𝙧𝙚𝙫𝙚𝙣𝙩𝙞𝙣𝙜 𝙞𝙣𝙩𝙚𝙧𝙛𝙚𝙧𝙚𝙣𝙘𝙚 𝙬𝙞𝙩𝙝 𝙤𝙩𝙝𝙚𝙧 𝙥𝙧𝙤𝙜𝙧𝙖𝙢𝙨
•Bus Addressing
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𝟯.𝗖𝗼𝗻𝘁𝗿𝗼𝗹 𝗕𝘂𝘀:
𝙎𝙚𝙣𝙙𝙨 𝙘𝙤𝙣𝙩𝙧𝙤𝙡 𝙨𝙞𝙜𝙣𝙖𝙡𝙨 𝙩𝙝𝙖𝙩 𝙘𝙤𝙤𝙧𝙙𝙞𝙣𝙖𝙩𝙚 𝙩𝙝𝙚 𝙖𝙘𝙩𝙞𝙤𝙣𝙨 𝙗𝙚𝙩𝙬𝙚𝙚𝙣 𝙩𝙝𝙚 𝘾𝙋𝙐 𝙖𝙣𝙙 𝙤𝙩𝙝𝙚𝙧 𝙘𝙤𝙢𝙥𝙤𝙣𝙚𝙣𝙩𝙨
(𝗶)𝗦𝗲𝗻𝗱𝘀 𝗰𝗼𝗻𝘁𝗿𝗼𝗹 𝘀𝗶𝗴𝗻𝗮𝗹𝘀 (𝗲.𝗴., 𝗿𝗲𝗮𝗱/𝘄𝗿𝗶𝘁𝗲):
𝙏𝙚𝙡𝙡𝙨 𝙙𝙚𝙫𝙞𝙘𝙚𝙨 𝙬𝙝𝙚𝙣 𝙩𝙤 𝙧𝙚𝙖𝙙 𝙤𝙧 𝙬𝙧𝙞𝙩𝙚 𝙙𝙖𝙩𝙖, 𝙬𝙝𝙚𝙣 𝙩𝙤 𝙩𝙧𝙖𝙣𝙨𝙛𝙚𝙧 𝙙𝙖𝙩𝙖, 𝙤𝙧 𝙥𝙚𝙧𝙛𝙤𝙧𝙢 𝙤𝙩𝙝𝙚𝙧 𝙘𝙤𝙣𝙩𝙧𝙤𝙡 𝙛𝙪𝙣𝙘𝙩𝙞𝙤𝙣𝙨
(𝗶𝗶)𝗦𝘆𝗻𝗰𝗵𝗿𝗼𝗻𝗶𝘇𝗲𝘀 𝗖𝗣𝗨 𝗮𝗻𝗱 𝗽𝗲𝗿𝗶𝗽𝗵𝗲𝗿𝗮𝗹 𝗼𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻𝘀:
𝙤𝙥𝙚𝙧𝙖𝙩𝙞𝙤𝙣𝙨: 𝙀𝙣𝙨𝙪𝙧𝙚𝙨 𝙩𝙝𝙚 𝙥𝙧𝙤𝙥𝙚𝙧 𝙨𝙚𝙦𝙪𝙚𝙣𝙘𝙚 𝙤𝙛 𝙤𝙥𝙚𝙧𝙖𝙩𝙞𝙤𝙣𝙨 𝙗𝙚𝙩𝙬𝙚𝙚𝙣 𝙩𝙝𝙚 𝘾𝙋𝙐 𝙖𝙣𝙙 𝙚𝙭𝙩𝙚𝙧𝙣𝙖𝙡 𝙙𝙚𝙫𝙞𝙘𝙚𝙨
𝟭.𝗗𝗮𝘁𝗮 𝗕𝘂𝘀:
𝙏𝙧𝙖𝙣𝙨𝙥𝙤𝙧𝙩𝙨 𝙙𝙖𝙩𝙖 𝙗𝙚𝙩𝙬𝙚𝙚𝙣 𝙩𝙝𝙚 𝘾𝙋𝙐, 𝙢𝙚𝙢𝙤𝙧𝙮, 𝙖𝙣𝙙 𝙥𝙚𝙧𝙞𝙥𝙝𝙚𝙧𝙖𝙡𝙨
(𝗶)𝗕𝗶-𝗱𝗶𝗿𝗲𝗰𝘁𝗶𝗼𝗻𝗮𝗹 𝗱𝗮𝘁𝗮 𝗳𝗹𝗼𝘄:
𝘿𝙖𝙩𝙖 𝙘𝙖𝙣 𝙛𝙡𝙤𝙬 𝙗𝙤𝙩𝙝 𝙩𝙤 𝙖𝙣𝙙 𝙛𝙧𝙤𝙢 𝙩𝙝𝙚 𝘾𝙋𝙐, 𝙚𝙣𝙖𝙗𝙡𝙞𝙣𝙜 𝙧𝙚𝙖𝙙𝙞𝙣𝙜 𝙖𝙣𝙙 𝙬𝙧𝙞𝙩𝙞𝙣𝙜 𝙤𝙥𝙚𝙧𝙖𝙩𝙞𝙤𝙣𝙨
(𝗶𝗶)𝗪𝗶𝗱𝘁𝗵 𝗮𝗳𝗳𝗲𝗰𝘁𝘀 𝗱𝗮𝘁𝗮 𝘁𝗿𝗮𝗻𝘀𝗳𝗲𝗿 𝘀𝗽𝗲𝗲𝗱:
𝙏𝙝𝙚 𝙬𝙞𝙙𝙩𝙝 (𝙚.𝙜., 32-𝙗𝙞𝙩, 64-𝙗𝙞𝙩) 𝙙𝙚𝙩𝙚𝙧𝙢𝙞𝙣𝙚𝙨 𝙝𝙤𝙬 𝙢𝙪𝙘𝙝 𝙙𝙖𝙩𝙖 𝙘𝙖𝙣 𝙗𝙚 𝙩𝙧𝙖𝙣𝙨𝙛𝙚𝙧𝙧𝙚𝙙 𝙖𝙩 𝙤𝙣𝙘𝙚, 𝙞𝙢𝙥𝙖𝙘𝙩𝙞𝙣𝙜 𝙥𝙚𝙧𝙛𝙤𝙧𝙢𝙖𝙣𝙘𝙚